2024
Efficient standardization of clinical T2‐weighted images: Phase‐conjugacy e‐CAMP with projected gradient descent
Zhang H, Elsaid N, Sun H, Tagare H, Galiana G. Efficient standardization of clinical T2‐weighted images: Phase‐conjugacy e‐CAMP with projected gradient descent. Magnetic Resonance In Medicine 2024, 92: 2723-2733. PMID: 38988054, DOI: 10.1002/mrm.30214.Peer-Reviewed Original ResearchData fidelity termSignal evolution modelFidelity termGradient descentProjected GradientEfficient algorithmVirtual conjugate coilAlgorithmObjective functionMapping errorsTunable parametersLinear constraintsSampling schemeTSE dataLong echo train lengthMapsTrain lengthVirtualTurbo spin echoEcho train lengthHigh-resolutionSchemeDataBackground phaseError rangeLow-Field, Low-Cost, Point-of-Care Magnetic Resonance Imaging
Samardzija A, Selvaganesan K, Zhang H, Sun H, Sun C, Ha Y, Galiana G, Constable R. Low-Field, Low-Cost, Point-of-Care Magnetic Resonance Imaging. Annual Review Of Biomedical Engineering 2024, 26: 67-91. PMID: 38211326, DOI: 10.1146/annurev-bioeng-110122-022903.Peer-Reviewed Original ResearchA Pilot Study of Insert Nonlinear Diffusion Gradient Coil on Calf Imaging
Zhang H, Elsaid N, Nixon T, Constable R, Sinusas A, Galiana G. A Pilot Study of Insert Nonlinear Diffusion Gradient Coil on Calf Imaging. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/0496.Peer-Reviewed Original ResearchMeasuring Perfusion in Peripheral Artery Disease Using an Advanced IVIM Method
Elsaid N, Galiana G, Thorn S, Vermillion B, Burns R, Jung S, Zohoro F, Sinusas A, Tagare H. Measuring Perfusion in Peripheral Artery Disease Using an Advanced IVIM Method. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/2601.Peer-Reviewed Original ResearchComb EMI: a hardware-free, training-free approach to EMI correction
Sun H, Sun C, Ha Y, Samardzija A, Gross R, Galiana G, Constable R. Comb EMI: a hardware-free, training-free approach to EMI correction. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/2691.Peer-Reviewed Original ResearchElectromagnetic interferenceTraining-freeNoise-dominated regionTraining dataDesign complexityExternal hardwareHardware-freeExtra hardwareHardwareDesign possibilitiesPoint-of-careExperimental dataMRI systemWhite noiseCancellationImprove costSparsitySampling windowSNRDesignTrainingPassive shieldingPortabilityCostMethodEfficient Standardization of Clinical T2-Weighted Images: Phase-Conjugacy e-CAMP with Projected Gradient Descent
Zhang H, Elsaid N, Sun H, Tagare H, Galiana G. Efficient Standardization of Clinical T2-Weighted Images: Phase-Conjugacy e-CAMP with Projected Gradient Descent. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/2733.Peer-Reviewed Original ResearchProjected Gradient DescentGradient descentMachine learningLarge-scale machine learningMassive data sourcesMap reconstructionParameter tuningRobust implementationParameter choicesEfficient enforcementData sourcesModel constraintsVirtual conjugate coilLearningImagesRoutine clinical imagingVirtualClinical imagesAlgorithmDatasetClinical scansParameter valuesMachineDescentQuantitative imagingDesign of novel loop coil array for B0 and gradient field generation
Ha Y, Samardzija A, Sun C, Sun H, Gross R, Galiana G, Constable R. Design of novel loop coil array for B0 and gradient field generation. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/2833.Peer-Reviewed Original ResearchInvestigation of Optimal Readout Frequency for the Non-Uniform B0 (NuBo) Field Cycling (FC) Scanner
Sun C, Ha Y, Samardzija A, Sun H, Gross R, Galiana G, Constable R. Investigation of Optimal Readout Frequency for the Non-Uniform B0 (NuBo) Field Cycling (FC) Scanner. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/2852.Peer-Reviewed Original ResearchA Non-Linear Gradient Insert for Prostate Diffusion Imaging
Elsaid N, Zhang H, Nixon T, Constable R, Weinreb J, Galiana G. A Non-Linear Gradient Insert for Prostate Diffusion Imaging. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/3507.Peer-Reviewed Original ResearchPractical Utilization of Nonlinear Spatial Encoding: Fast Field Mapping and FRONSAC-wave
Zhang H, Constable R, Galiana G. Practical Utilization of Nonlinear Spatial Encoding: Fast Field Mapping and FRONSAC-wave. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/3921.Peer-Reviewed Original ResearchMovable Linear Gradients Optimized on Non-Planar B0 Slice Profiles Used for Improving Spatial Encoding in a Non-Linear Low-Field MRI
Samardzija A, Ha Y, Sun C, Sun H, Gross R, Galiana G, Constable R. Movable Linear Gradients Optimized on Non-Planar B0 Slice Profiles Used for Improving Spatial Encoding in a Non-Linear Low-Field MRI. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2024 DOI: 10.58530/2024/4076.Peer-Reviewed Original ResearchPractical utilization of nonlinear spatial encoding: Fast field mapping and FRONSAC‐wave
Zhang H, Constable R, Galiana G. Practical utilization of nonlinear spatial encoding: Fast field mapping and FRONSAC‐wave. Magnetic Resonance In Medicine 2024, 92: 1035-1047. PMID: 38651264, PMCID: PMC11209788, DOI: 10.1002/mrm.30119.Peer-Reviewed Original ResearchCombination of wavesImage qualityFrequency domainUndersampling ratesShort calibration timeG-factor mapsWave sequencesCalibration timeWave amplitudePoint spread functionImprove image qualityMapping schemeUndersampling factorsGradient trajectoriesSpread functionEncodingIn vivo human brain imagingTrajectory mappingWaveHuman brain imagingUndersamplingField mappingEncoding gradientsSparsityMapping approachConstrained alternating minimization for parameter mapping (CAMP)
Elsaid N, Dispenza N, Hu C, Peters D, Constable R, Tagare H, Galiana G. Constrained alternating minimization for parameter mapping (CAMP). Magnetic Resonance Imaging 2024, 110: 176-183. PMID: 38657714, PMCID: PMC11193090, DOI: 10.1016/j.mri.2024.04.029.Peer-Reviewed Original ResearchConceptsAlternating minimizationAccelerated parameter mappingImage qualityReconstructed image qualityEfficient reconstruction algorithmSacrificing model accuracyParameter mapsPhantom studyK-space samplingAcceleration datasetsK-spaceUndersampling artifactsCartesian acquisitionConsecutive imagesReconstruction algorithmIndividual imagesModel cost functionExponential decayEcho timeReconstruction methodCost functionReduce artifactsPhantomScan timeObjective functionClinical physiology: the crucial role of MRI in evaluation of peripheral artery disease
Elsaid N, Peters D, Galiana G, Sinusas A. Clinical physiology: the crucial role of MRI in evaluation of peripheral artery disease. AJP Heart And Circulatory Physiology 2024, 326: h1304-h1323. PMID: 38517227, PMCID: PMC11381027, DOI: 10.1152/ajpheart.00533.2023.Peer-Reviewed Original ResearchPeripheral arterial diseaseMagnetic resonance imagingArtery diseaseClinical applicationEvaluation of peripheral arterial diseaseTranslation to clinical researchPre-clinical modelsMedial vascular calcificationDiagnosis of peripheral arterial diseaseExcellent soft tissue contrastPathophysiology of peripheral arterial diseaseAssessment of peripheral arterial diseaseNoninvasive imaging toolMR imaging technologyMR imaging techniquesSoft tissue contrastMultiplanar imaging capabilityAutonomic dysfunctionMicrovascular dysfunctionRisk stratificationPeripheral neuropathyComprehensive physiological assessmentTreatment outcomesVascular calcificationTherapy planningEncoding scheme design for gradient-free, nonlinear projection imaging using Bloch-Siegert RF spatial encoding in a low-field, open MRI system
Selvaganesan K, Ha Y, Sun H, Zhang Z, Sun C, Samardzija A, Galiana G, Constable R. Encoding scheme design for gradient-free, nonlinear projection imaging using Bloch-Siegert RF spatial encoding in a low-field, open MRI system. Scientific Reports 2024, 14: 3307. PMID: 38332252, PMCID: PMC10853509, DOI: 10.1038/s41598-024-53703-y.Peer-Reviewed Original ResearchConceptsBloch-SiegertSpatial encodingBloch-Siegert shiftGradient-freeLow-field imagesLow fieldsProjection imagesPhase shiftLoop coilEncoding settingsEncoding schemeEncoding trajectoriesLow-field MR imagingSpatial resolutionImage reconstructionOptimization algorithmEncodingMRI systemShift effectHardware setupMR systemOpen MRI systemScheme designAlgorithmImages
2023
EM shielded spiral RF coil design for array coil decoupling at ultra-low field MRI
Ha Y, Selvaganesan K, Sun C, Zhang Z, Samardzija A, Sun H, Galiana G, Constable T. EM shielded spiral RF coil design for array coil decoupling at ultra-low field MRI. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2023 DOI: 10.58530/2023/1776.Peer-Reviewed Original ResearchStop-Motion RF for Improving Spatial Resolution in Non-Linear Gradient-Free Low-Field MRI
Samardzija A, Selvaganesan K, Ha Y, Zhang Z, Sun C, Sun H, Galiana G, Constable T. Stop-Motion RF for Improving Spatial Resolution in Non-Linear Gradient-Free Low-Field MRI. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2023 DOI: 10.58530/2023/1761.Peer-Reviewed Original ResearchDiffusion Weighted Imaging using a Prostate Nonlinear Gradient Coil
Elsaid N, Nixon T, Dewdney A, De Simone A, Fettahoglu A, Galiana G. Diffusion Weighted Imaging using a Prostate Nonlinear Gradient Coil. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2023 DOI: 10.58530/2023/4575.Peer-Reviewed Original ResearchMulti-echo RF spatial phase encoding for gradient-free imaging in a nonuniform B0-field at low-field
Selvaganesan K, Ha Y, Sun C, Samardzija A, Zhang Z, Sun H, Galiana G, Constable T. Multi-echo RF spatial phase encoding for gradient-free imaging in a nonuniform B0-field at low-field. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2023 DOI: 10.58530/2023/0532.Peer-Reviewed Original ResearchMulti-shell versus single-shell cardiac diffusion imaging
Elsaid N, Peters D, Galiana G, Sinusas A. Multi-shell versus single-shell cardiac diffusion imaging. Proceedings Of The International Society For Magnetic Resonance In Medicine ... Scientific Meeting And Exhibition. 2023 DOI: 10.58530/2023/4288.Peer-Reviewed Original Research